AstroNotes

Here we report the ATLAS discovery of the transient ATLAS25gdu (AT2025noo) in galaxy CGCG 241-092 at magnitude m_o = 19.01 +/- 0.19. At a distance of 85 Mpc, the transient was discovered on MJD = 60…

Here we report the ATLAS discovery of the transient ATLAS25gde (AT2025nno) in galaxy UGC 12720 at magnitude m_o = 18.44 +/- 0.15. At a distance of 71 Mpc, the transient was discovered on MJD = 60840…

Here we report the ATLAS discovery of the transient ATLAS25gbx (AT2025nkf) in galaxy NGC 3040 NED01 at magnitude m_o = 18.5 +/- 0.15. At a distance of 101 Mpc, the transient was discovered on MJD = …

We report 4 SLSN and 1 TDE candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these even…

Here we report on the bright and likely fast rising supernova candidate AT 2025ngs (ATLAS25gbi, ZTF25aauvber) in NGC 5961 (at a mean metric distance of 32.7 Mpc), detected by ATLAS and ZTF.

Here we report the ATLAS discovery of the transient ATLAS25gbg (AT2025ngi) in galaxy ESO 187- G 058 at magnitude m_o = 17.62 +/- 0.10. At a distance of 47 Mpc, the transient was discovered on MJD = 6…

We report 6 ZTF superluminous supernova candidates selected by our software filter and subsequent human vetting. In this sample, a typical rise time is longer than 30 days and a typical peak r-band m…

Here we report the ATLAS discovery of the transient ATLAS25fyr (AT2025nat) in galaxy NGC 4475 at magnitude m_o = 18.36 +/- 0.12. At a distance of 105 Mpc (redshift independent, from NED), the transie…

We report the spectroscopic classification with NOT/ALFOSC of 9 optical transients. 3 CVs, 1 SN Ia, 1 SN Ic-BL, 2 SN II, 1 featureless continuum, and 1 Microlensing event.

We report 3 SLSN candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these events.

Here we report the ATLAS discovery of the transient ATLAS25fxl (AT2025myc) in galaxy 2MFGC 01200 at magnitude m_c = 18.7 +/- 0.15. At a distance of 83 Mpc, the transient was discovered on MJD = 6…

Here we report the ATLAS discovery of the transient ATLAS25fwv (AT2025mvn) in galaxy NGC 5033 at magnitude m_o = 18.22 +/- 0.14. At a distance of 18 Mpc, the transient was discovered on MJD = 60829…

Here we report the ATLAS discovery of the transient ATLAS25fwt (AT2025mve) in galaxy NGC 2749 at magnitude m_o = 17.28 +/- 0.13. At a distance of 56 Mpc (redshift independent, from NED), the transie…

Here we report the ATLAS discovery of the transient ATLAS25fwd (AT2025mty) in galaxy GALEXASC J030323.38-281834.5 at magnitude m_o = 17.67 +/- 0.09. At a distance of 84 Mpc, the transient was discov…

Here we report the ATLAS discovery of the transient ATLAS25fvu (AT2025msx) in galaxy NGC 3987 at magnitude m_o = 18.91 +/- 0.19. At a distance of 59 Mpc (redshift independent, from NED), the transie…

Here we report the ATLAS discovery of the transient ATLAS25fvx (AT2025msz) in galaxy LEDA 2207802 at magnitude m_c = 17.29 +/- 0.04. At a distance of 74 Mpc, the transient was discovered on MJD = 6…

We report the classification of SN 2025mqc as a young type Ib supernova in NGC 4653 at ~38 Mpc.

Here we report the ATLAS discovery of the transient ATLAS25fue (AT2025mqc) in galaxy NGC 4653 at magnitude m_o = 18.58 +/- 0.2. At a distance of 38 Mpc, the transient was discovered on MJD = 60824.3…

This report includes classifications of 1 Type 1a, 1 Type Ia-91T-like, 1 Type II, and 1 Type Ic. We encourage followup observations.

We report an FBOT candidate WFST0617iqnc (AT 2025mba) discovered by the WFST deep high-cadence ugr-bands survey.

This report includes classifications of 1 Type Ia, 1 Type II, 1 SN and 1 blue and featureless object. We encourage followup observations.

We report 4 SLSN and 1 TDE candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these even…

We report a fast rising supernova candidate WFST0614dwbc (AT 2025mbz) discovered by the WFST deep high-cadence ugr-bands survey.

This report includes 10 classifications. There are 7 Type Ia's, 2 Type II's, and 1 blue and featureless object. We encourage followup observations.

This report includes 17 classifications. There are 6 normal Type Ia's, 1 Super-Chandra Type Ia, 3 Ia-91T-like, 3 Type II's, 3 CVs, and 1 blue and featureless object. We encourage followup observation…

Here we report the ATLAS discovery of the transient ATLAS25fjc (AT2025lwz) in galaxy WISEA J225443.49+075149.9 at magnitude m_c = 18.76 +/- 0.15. At a distance of 99 Mpc, the transient was discove…

Here we report the ATLAS discovery of the transient ATLAS25fef (AT2025kzr) in galaxy ESO 501- G 001 at magnitude m_c = 17.00 +/- 0.03. At a distance of 50 Mpc (redshift independent, from NED), the t…

This report includes classifications of 4 Ia's, 2 II's, 3 CV's, 1 Ia-91T, and 1 Ia-CSM. We encourage followup observations.

This report includes classifications of 6 Type Ia's, 1 Type Ia-91bg-like, and 1 Type II. We encourage followup observations.

This report includes classifications of 3 Type Ia's, 2 Type Ia-91T-like, 1 Type II, 1 Type IIn, 1 featureless blue transient, and 1 Type Ic. We encourage followup observations.

We report 1 SLSN candidate from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these events.

We report no radio source within 5 arcseconds of the reported location of supernova SN2025gvs, with a 3-sigma RMS of 99 microJy/beam, consistent with a non-detection at this time.

Here we report the ATLAS discovery of the transient ATLAS25eyd (AT2025kjo) in galaxy IC 1529 at magnitude m_c = 17.77 +/- 0.12. At a distance of 89 Mpc, the transient was discovered on MJD = 60803.14…

Here we report the ATLAS discovery of the transient ATLAS25exz (AT2025kiu) in galaxy 2MASX J01200501-3354009 at magnitude m_o = 17.10 +/- 0.11. At a distance of 46 Mpc, the transient was discovered …

Here we report the ATLAS discovery of the rapidly evolving transient ATLAS25evh (AT2025jzi) in galaxy WISEA J092321.66-202025.8 with current magnitude_o = 18.50 +/- 0.17. The transient was discovered…

We report 3 SLSN and 1 TDE candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these even…

We classify the optical re-brightening event towards AT 2021gqu as a peculiar Type Ia Supernova, based on optical spectroscopy.

Spectral classification of 2 transients and reclassification of 1 transient.

This report includes classifications of 1 Type Ic-BL and 2 Type Ia's. We encourage follow-up observations.

Spectral classification confirmation of 2 transients

Here we report the ATLAS discovery of the transient ATLAS25eqo (AT2025jsh) in galaxy ESO 263- G 014 at magnitude m_o = 18.12 +/- 0.14. At a distance of 75 Mpc, the transient was discovered on MJD = …

Here we report the ATLAS discovery of the transient ATLAS25eqm (AT2025jqz) in galaxy 2MASX J00083403+5530408 at magnitude m_o = 17.98 +/- 0.09. At a distance of 68 Mpc, the transient was discovered o…

This report includes classifications of 6 Type Ia's and 1 Type II SN. We encourage followup observations.

This report includes classifications of 2 Type II's, 1 Type Ia, 1 AGN, and 1 CV. We encourage follow-up observations.

Here we report the ATLAS discovery of the transient ATLAS25emr (AT2025izc) in galaxy SDSS J092254.16+463203.9 at magnitude m_o = 18.54 +/- 0.11. At a distance of 43 Mpc, the transient was discovered …

We report 3 SLSN and 2 TDE candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these even…

We report the spectroscopic detection of a light echo from Type Ia Supernova 2021aefx at ~1200 days post maximum light using the Very Large Telescope.

Here we report the ATLAS discovery of the transient ATLAS25eca (AT2025ifq) in galaxy 2MASX J10170279-3816235 at magnitude m_o = 17.56 +/- 0.03. At a distance of 72 Mpc, the transient was discovered…

We report observations of the astrophysical neutrino candidate IC-250421A with the Large Array Survey Telescope (LAST). We cover part of the 90%-footprint neutrino localization and find ~60-days old …

We report 2 SLSN candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these events.